TWI696460B - Container for a consumable good, coated with a resveratrol-containing layer, process for preparing the container, use of the container for the storage of a consumable good, and use of resveratrol as an additive to a coating layer of the container - Google Patents

Abstract

The present invention relates to a container for a consumable good having an inner coating layer comprising resveratrol, a process for preparing such a container, and the use of said container for the storage of a consumable good, and the use of resveratrol as an additive to coating layers of such containers.

Description

Container for consumer goods coated with a layer containing resveratrol, method for preparing the container, application of the container for storing consumer goods, and resveratrol as a coating layer for the container Application of additives

The present invention relates to a container containing a resveratrol-containing coating, in particular, it faces the inside of the container. Specifically, the container should be filled with consumer goods, specifically food or food, personal care or medical products. Specifically, it has an inner coating containing resveratrol. The invention further relates to a method of preparing such a container, the use of the container to store consumer goods and the use of resveratrol as an additive added to the coating of such a container.

For centuries, consumer goods have been stored in various containers, including wood, animal skins, pottery, and leather.

In the past decade, alternative packaging forms, such as metal containers, plastic containers such as polyethylene (PE), polypropylene (PP), polyethylene tetraphthate (PET) or other Made of polymers and their mixtures, And the popularity of paper or cardboard containers has increased. It offers the advantage of less weight, but its characteristics are not suitable for long-term storage in many cases, especially for products sensitive to oxidation.

Such products sensitive to oxidation are related to consumer goods (consumables) in all fields, especially foods such as food and beverages, but also include medical products or medicines, medical and veterinary products, cosmetics and personal care products. In many cases, problems also arise due to the relatively positive nature of these commodities or products. These problems occur in both liquid and solid consumer goods. As a result of the interaction of the product with the container or the compound (such as oxygen) entering the container, the quality of the product is impaired and/or the life span and storage stability of the consumer goods are compromised.

In order to ensure product integrity, service life, and meet consumer requirements for sustainable packaging, as well as to maintain the quality of the commodity under various global storage and transportation conditions, the development of a powerful packaging system, especially for delicate products (consumption Sex goods) is considered necessary.

With globalization and the increasing demand for consumer goods in the global market, it is necessary to maintain their integrity and stability while transporting these goods globally. In addition, due to today's global economic conditions, manufacturers of consumer goods are forced to package their products in several countries around the world. These products become very sensitive to various regional conditions during manufacturing, including water quality and chemical composition, climatic conditions, etc. All conditions have a significant potential impact on product integrity, stability, and longevity.

Mainly, the same or similar factors apply to all consumer goods, such as manufacturers of food or cosmetics, health care or beauty products, pharmaceutical products, medicines and the like. Therefore, one object of the present invention is to provide a beneficial container, specifically for consumer goods, such as food or food, personal care products or pharmaceutical products, and avoid the aforementioned Problems in technology.

In addition, another object of the present invention is to provide a method for preparing such a container and the application of such a container.

According to one aspect of the present invention, there is provided a container specifically for consumer goods, wherein the inner surface of the container is at least partially coated with a coating layer containing resveratrol.

According to a broad aspect of the invention, it relates to a container comprising a resveratrol-containing coating layer, specifically towards the interior of the container. The container should be specifically filled with consumer goods, specifically food or food, personal care or medical products. It especially has an inner coating layer containing resveratrol.

In a specific embodiment of the invention, the container (yet) does not contain the consumer goods. Therefore, one aspect of the invention refers to the container before being filled with the consumer goods as it is produced.

According to one aspect of the invention, consumer goods (or consumables) are those (according to the 1913 Weber's Dictionary) that can be consumed. Consumed shall mean those who spend or use it in any way, such as for nutrition, for personal care or health or beauty purposes, for medical or veterinary purposes, or as food in any other way.

According to a specific embodiment of the present invention, consumer goods are understood to include especially foods, such as foods, food ingredients, nutritional products, nutritional supplements, beverages, as well as cosmetic products, beauty and health care products, pharmaceutical and veterinary products, Drugs and their analogs. Generally speaking, the commodity may contain solid, liquid and/or gaseous components. According to a specific embodiment, the food system is understood as something that can be eaten by humans or animals, that is, something suitable for being eaten. Better food or food One non-limiting list of food ingredients includes solid foods, liquid or liquid foods such as baby foods, (infant) formula and similar, solid foods such as canned foods, pre-cooked meals or dinners , Such as canned fish, semi-solid foods such as meat, fruits or vegetables in juices or sauces, other food products or condiments, sauces, marinades, spices and the like. One non-limiting list of preferred pharmaceutical or veterinary products is medicines in the form of tablets, capsules, granules, powders, liquids, other solid or liquid dosage forms and the like. One non-limiting list of preferred cosmetic products or beauty and health care products includes creams, lotions, soaps, emulsions, dispersants, or liquids.

As used herein, "container" should be broadly understood to include all kinds of containers or packaging (for consumer goods) in a rigid or elastic form.

In a specific embodiment of the present invention, the consumer goods are non-beverage consumer goods.

In a specific embodiment of the invention, the consumer goods are food or food, personal care or medical products.

In a particular embodiment of the invention, the personal care or medical product is in the form of tablets, capsules, granules, powders, liquids, soaps, lotions or creams, emulsions, dispersants or solutions or the like.

In another preferred embodiment, the inner surface of the container is integrally coated with a coating layer containing resveratrol.

In yet another preferred embodiment, the coating layer contains resveratrol at a concentration of at least 0.0001% by weight, preferably at least 0.001% by weight, more preferably at least 0.01% by weight, still more preferably at least 0.1% by weight The percentage is even more preferably at least 1.0 weight percent.

In yet another preferred embodiment, the coating layer contains resveratrol at a concentration of at most 30% by weight, preferably at most 10% by weight, more preferably at most 1% by weight, still more preferably at most 0.1% by weight The percentage is even more preferably at most 0.01 weight percent.

In another preferred embodiment, the container is made of glass, metal, polymer material, paper, cardboard, or a combination thereof, in a more preferred embodiment, it is aluminum.

In yet another preferred embodiment, the thickness of the coating layer on the inner surface of the container is in the range of about 3.5 to about 8.4 grams per square meter, in a more preferred embodiment is In the range of about 4.0 to about 8.0 grams per square meter, in a preferred embodiment it is in the range of about 5.0 to about 8.0 grams per square meter. In another specific embodiment, the thickness of the coating layer and/or the container wall may be from about 0.1 μm to 10 mm, specifically from about 1 μm to 1 mm.

In another preferred embodiment, the coating layer does not contain epoxy resin. In a more preferred embodiment, the coating layer does not contain bisphenol A or bisphenol A-releasing substances.

In another preferred embodiment, the coating layer is a thermosetting coating layer.

In yet another preferred embodiment, there is at least one additional coating layer in the container, optionally between the coating layer containing resveratrol and the container wall made of metal.

According to yet another aspect of the present invention, there is provided a method of preparing a container for consumer goods as defined above, the method comprising the following steps: a) providing a container having a container wall having an interior facing the container The inner side of the space; b) providing a coating layer on the inner side of the container wall, the coating layer containing resveratrol.

According to a specific embodiment, the above step b) includes applying an uncured coating layer containing resveratrol to the surface of the container wall material, and curing the uncured coating layer.

In a specific embodiment of the method, the uncured coating layer containing resveratrol is applied to the surface of a container wall material before the container is formed.

In another specific embodiment of the method, the uncured coating layer comprising resveratrol is applied to the surface of a container wall material after the container is formed.

In another specific embodiment, the method includes the additional step of filling a consumer product as defined herein into the container.

In yet another specific embodiment, the consumer goods are food or food, personal care or medical products.

According to yet another aspect of the present invention, there is provided a container obtained by the method of the present invention.

A further aspect of the present invention is directed to a container according to any one of the foregoing aspects or specific embodiments, further comprising consumer goods, specifically non-beverage consumer goods. Specifically, yet another aspect of the present invention is directed to a container according to any one of the foregoing aspects or specific embodiments, further containing or being filled with consumer goods, such as non-beverage consumer goods.

According to yet another aspect of the present invention, there is provided an application of a container according to any one of the foregoing aspects or specific embodiments of the present invention for storing consumer goods, specifically non-beverage consumer goods.

According to yet another aspect of the present invention, there is provided the use of resveratrol as an additive for a coating layer on the inner surface of a container for consumer goods, specifically non-beverage consumer goods.

According to a preferred embodiment, the consumer goods are food or food, personal care or medical products.

All specific embodiments and aspects described and/or claimed herein are considered combinable in the present invention unless they are excluded on the contrary. In particular, specific embodiments of features related to the container or its material and the consumer goods are combinable and are disclosed in any combination of any product, method or application aspect of the invention.

It has been surprisingly found that a container for a consumer product, in which the inner surface of the container is at least partially coated with a coating layer containing resveratrol, is provided for the avoidance of harmful and undesirable loss of quality. Good protection includes undesirable consequences of the reaction between the consumer product and the packaging material, or between the consumer product and the compound entering or present inside the container.

As described above, according to a specific embodiment of the present invention, consumer goods are understood to include, inter alia, food, food ingredients, nutritional products, nutritional supplements, beverages, cosmetic products, beauty and health care products, pharmaceutical and veterinary products, Drugs and their analogs. Generally speaking, the commodity may contain solid, liquid and/or gaseous components. One non-limiting list of preferred beverages includes wine or wine-based products, soft drinks, juices, milk or whey-based beverages and the like. A non-limiting list of preferred foods or food ingredients includes solid foods, liquid or liquid foods such as baby foods, (infant) formula, etc., solid foods such as canned foods, pre-cooked meals Or dinner, such as canned fish, semi-solid state Foods such as meat, fruits or vegetables in juices or sauces, other food products or condiments, sauces, marinades, spices and the like. One non-limiting list of preferred pharmaceutical or veterinary products is medicines in the form of tablets, capsules, granules, powders, liquids, other solid or liquid dosage forms and the like. One non-limiting list of preferred cosmetic products or beauty and health care products includes creams, lotions, soaps, emulsions, dispersants, or liquids. It also includes personal care products or cosmetics, that is, products used for personal hygiene and beautification. Personal care products include but are not limited to lip balm, cleansing pads, colognes, deodorants, eyeliners, lip glosses, lipsticks, lotions, make-up, hair oils, perfumes, talcum powder, shaving creams, skin creams, wipes, etc. Also includes drugs and compositions containing drugs (medicine and veterinary products). Drugs are, in the broadest sense, chemical substances known to have biological effects on humans or other animals.

According to a specific embodiment of the present invention, the consumer product is a beverage, specifically a wine or a wine-based beverage. Here, wine is understood to include any beverage derived from grape growing and winemaking techniques known in the art. In a preferred embodiment, the wine is red wine. In another preferred embodiment, the wine is white wine. In another preferred embodiment, the wine is rosé wine. The wine can be static wine or carbonated, sparkling wine. The wine may also be fortified wine. Wine-based drinks are understood to include any drink containing wine as defined above. Probably mentioned as an example of wine-based drinks is wine mixed with mineral water or fruit juice.

As used herein, "container" should be broadly understood to include all kinds of containers or packaging (for consumer goods) in a rigid or elastic form.

In addition, a container with a coating containing resveratrol unexpectedly efficiently suppresses or minimizes the deterioration of the quality of the packaged consumer goods, specifically due to oxidation The quality deteriorates. Resveratrol was also found on the grape skin. Resveratrol in both cis and trans configurations is found in wine (grape). Here, the word resveratrol should be understood as its broadest meaning. In a specific embodiment, resveratrol includes cis-resveratrol and trans-resveratrol. In a preferred embodiment, resveratrol should refer to trans-resveratrol.

The container according to the invention unexpectedly helps to maintain and even promote the quality and/or lifespan of the consumer goods. Surprisingly, we have found that the use of resveratrol in the container of the present invention not only provides protection for the consumer product relative to the container material, but it also enhances the beneficial effects within the consumer product. It is assumed, without limitation, that resveratrol involves a beneficial interaction between the container (inner surface) and the consumer product, and may also neutralize and replace harmful substances that would otherwise appear on the surface of the container wall , Such as oxygen, other oxides or corrosive substances.

The present invention causes any interaction or reaction with packaging materials or compounds present in the container, such as air or specifically oxygen, to cause degradation or decomposition of the packaging material and/or the packaged goods, and ultimately to the consumption The packaging of corrupt consumer goods of sexual commodities is effective.

Surprisingly, we found that the use of resveratrol as a group of ingredients in the internal coating system of the container not only provides protection for beverages such as wine from the material of the container, but also increases the resveratrol in the wine The beneficial effects of alcohol.

In the case of packaging that is difficult to hold and highly active beverages such as wine, the risk is that the beverage interacts and reacts with the packaging material, which may cause an impact on the taste, appearance, or overall integrity of the beverage. This interaction is largely caused by acids or free radicals originally present in the beverage or produced over time.

Accordingly, the present invention is not limited to wine or wine-based beverages as beverages, but is also useful for the packaging of any beverage, which may interact or react with the packaging material to cause degradation and decomposition of the packaging material and ultimately lead to The drink is spoiled. Examples of such drinks are fruit juices, specifically grape juice, soft drinks, lemon juice, cola, acidic drinks, carbonated drinks, and drinks containing phosphoric acid.

Generally speaking, if the consumer product reacts with the inner coating of the container, it will cause the corruption of the consumer product caused by the packaging material, so it is important to prevent the degradation and decomposition of the packaging material.

The inventor of the present invention was surprised to find that resveratrol as a part of the inner wall coating of a container can protect and prevent such degradation and decomposition.

According to a specific embodiment of the present invention, without being bound by theory, it is assumed that resveratrol present in the coating of the container may be on the surface of the coating that faces and contacts the consumer goods, and within the coating ( It may also serve as a reservoir for extended-time resveratrol release) and migrate from the coating to the consumer product as an active ingredient in the consumer product.

It has been observed that as part of the present invention, resveratrol may have additional desired functions, such as inhibiting undesirable reactions or degradation of the consumer product in the container. Therefore, for example, excessive growth of microorganisms may cause deterioration of the taste, flavor, and integrity of the food. In addition, microbial metabolites can exacerbate the problem of cracking of the packaging material.

By creating a barrier to resveratrol with positive effects, we were surprised to find that it protects the consumer product and increases its stability and longevity.

According to one aspect of the invention, it is beneficial that resveratrol is present in the coating of the container before the consumer goods are added to the container. According to this specific embodiment, the container of the present invention refers to an empty container before it is filled with consumer goods. According to a specific embodiment, the container of the present invention is an unused container, that is, it has never been used to fill consumer goods. This method provides a protective barrier on the inner wall of the container as described above. For example, from the beginning, that is, when filling the container, it resisted the highly active, corrosive, acidic and The oxidizing component and the coating provide a protective and beneficial surface. According to a specific embodiment of the present invention, this initial protection is particularly important for keeping the coating intact since the first contact with the consumer product, but also protects the long-term quality and perfection of the consumer product.

In a preferred embodiment of the present invention, the coating layer comprises resveratrol at a concentration of at least 0.0001% by weight, preferably at least 0.001% by weight, more preferably at least 0.01% by weight, still more preferably at least 0.1 weight percent, still more preferably at least 1 weight percent, still more preferably at least 10 weight percent, still more preferably at least 30 weight percent.

In another preferred embodiment of the present invention, the coating layer contains resveratrol at a concentration of at most 70% by weight, preferably at most 30% by weight, more preferably at most 10% by weight, and still more preferably At most 1% by weight, still more preferably at most 0.1% by weight, still more preferably at most 0.01% by weight, still more preferably at most 0.001% by weight.

In a particularly preferred embodiment of the present invention, the coating layer according to the present invention contains resveratrol at a concentration of from 0.0001 to 10 weight percent, and in a more preferred embodiment from 0.1 to 5 weight percent , Preferably 0.5 to 1 weight percent, in another more preferred embodiment is From 0.001 to 0.05 weight percent, preferably 0.005 to 0.01 weight percent.

According to a specific embodiment of the present invention, the above weight percentage range is based on the total weight of the resveratrol-containing coating layer. If there is more than one coating layer in the container, according to a specific embodiment of the present invention, the above weight percentage range is based on the total weight of all coating layers. According to another embodiment of the present invention, the above weight percentage range is based on the total weight of the coating layer containing only resveratrol.

According to one aspect of the invention, the concentration of resveratrol may also vary across the cross-section of the coating layer. For example, according to a specific embodiment, the concentration of resveratrol at or near the surface of the coating layer facing the consumer product may be higher than the portion of the coating layer farther from the surface. In this way, according to a specific embodiment of the present invention, it is possible to enhance the protective effect of the surface of the coating layer, for example, in an unused container before filling the consumer goods, so that when the consumer goods are filled into the container Inside, there is a favorable protective layer. According to another specific embodiment, the opposite concentration arrangement may also be present to provide a longer-term storage of resveratrol in the coating layer.

The container according to the invention provides an improved method for packaging consumer goods by manufacturers and packagers of consumer goods.

The resveratrol-containing internal barrier and its application method can be part of an integrated packaging system that has the ability to be applied to any container during the normal container manufacturing process.

In addition, the container according to the present invention can transport the final product containing sensitive consumer goods in a non-refrigerated marine container, thus reducing the carbon footprint.

In a preferred embodiment, the container comprises or is made of metal, polymer material such as plastic material, paper, cardboard, glass, or a combination thereof, and in a more preferred embodiment is aluminum. The present invention is effective for the storage of any consumer goods mentioned herein, Include those that are acidic, corrosive, oxidizing, or capable of reacting with packaging materials in any way, and those that are sensitive to environmental factors and compounds present in the container. As mentioned above, the term "container" as used herein includes any packaging or packaging materials for consumer goods in a rigid or elastic form. The container may have a suitable form or shape for packaging various goods. The container may be, for example, but not limited to, cans, bags, cans, cans, troughs, bowls, bottles, barrels, or the like. According to a specific embodiment, the container is a packaging for medicine. According to a specific embodiment, the container may also be in the form of a bubble wrap and the optional antioxidant may be present on the metal foil and/or the plastic film of the bubble wrap.

In a preferred embodiment of the present invention, the coating layer acts as a bidirectional barrier. A two-way barrier should be understood in the context of the present invention not only to protect the consumer product from undesired interaction with the packaging material resulting in deterioration or change in the quality of the consumer product; in addition, the barrier The packaging material should be protected from unintended interactions with the consumer goods, which may cause harm to the container or its integrity.

According to several aspects of the present invention, the container, procedure and application according to the present invention can especially reduce the probability of food poisoning (especially from canned food) or increase the product's inventory life (life and stability of the product). It can also help to achieve a variety of suitable transportation conditions for packaging consumer goods through several global climate conditions. It may further reduce the demand for preservatives, such as salt/sodium based preservatives, or for example sorbic acid as a preservative in canned food. It can also prevent harmful corrosion on the container or its lining, for example. In many cases, they may maintain or stabilize the natural flavor or increase the natural flavor of foods that are expendable commodities. The reduction of free radical formation can be achieved, for example, by reducing/eliminating the formation of useless bacteria in food. Therefore, the probability of infection can be reduced. For pharmaceutical products, it can increase their stability With quality.

According to a specific embodiment, in principle, all coating compositions or lacquers known to those skilled in the art can be used as coating layers in the present invention. Examples of general methods of preparation and the application of exemplary coatings are disclosed in European Patent Application Publication No. EP 2457840 A1 "Packaging Materials 7. Metal Packaging for Food" (ILSI Publication of the European Special Committee on Packaging Materials, September 2007, can be seen at https://europa.eu/sinapse/sinapse/index.cfm?fuseaction=lib.attachment&lib_id=C5C03DA0-ED72-0D54-309D55AA14F6C62F&attach=LIB_DOC_EN) or "Preliminary Industry Characterization: Metal Cans" Manufacturing-Surface Coating" (US Environmental Protection Agency publication, September 1998, available at http://www.epa.gov/ttnatw01/coat/mcan/pic-can.pdf ).

Coating compositions and coatings for metallic and non-metallic surfaces are known to those of ordinary skill in the art. The composition is selected by a person having ordinary knowledge in the art according to the surface properties, the adhesion of the metal or non-metal surface, and the compatibility with the consumer goods to be packaged. One application The preferred non-metallic material (surface) containing resveratrol coating is a polymer or plastic surface. Resveratrol can be easily added before, during and after the coating is formed.

The lacquers that have been previously used for inner coatings (coating layers) of containers such as aluminum cans are mainly based on compounds containing Bisphenol A (BPA), such as epoxy resins. According to a specific embodiment of the present invention, the use of bisphenol A or bisphenol A-releasing substances in the coating layer of the beverage container is avoided. According to a specific embodiment, the coating layer should not contain any of the following possible hazardous substances: formalin, potassium permanganate (KMnO4), dibutyl phthalate (DBP), bisphthalate (2-ethylhexyl) phthalate (bis (2-ethylhexyl) phthalate, DEHP), diisobutyl phthalate (DIBP), dimethyl phthalate (dimethyl phthalate, DMP), diethyl phthalate (DEP), bis(2-ethylhexyl) adipate (DEHA), diisodecyl phthalate (diisodecyl phthalate (DIDP), diisononyl phthalate (DINP).

In another specific embodiment, the paint does not contain epoxy resin. In another specific embodiment, the coating layer does not contain bisphenol A or bisphenol A-releasing substances.

In another preferred embodiment, the coating layer is a thermosetting coating layer.

In a preferred embodiment, the paint according to the present invention meets all USFDA regulations or other national food safety regulations, specifically the paint is food grade. Such paints are known to those of ordinary skill in the art and are commercially available. All available paints can be used in the present invention.

The thickness of the coating layer of the container according to the present invention should preferably be selected so that the aggressive elements in a consumer product will not come into contact with the container material, and that the coating provides sufficient protection for the product to be packaged. According to the present invention, an extended inventory life and improved product integrity can be obtained.

In a preferred embodiment, the thickness of the coating layer on the inner surface of the container is in the range of about 3.5 to about 8.4 grams per square meter, in a more preferred embodiment is It ranges from about 4.0 to about 8.0 grams per square meter, and in a preferred embodiment it ranges from about 5.0 to about 8.0 grams per square meter. In another specific embodiment, the thickness of the coating layer and/or the container wall may be from about 0.1 μm to 10 mm, specifically from about 1 μm to 1 mm.

In a preferred embodiment, the coating layer is uniformly distributed on the inner wall of the entire container, so that the inner wall is entirely coated with the resveratrol-containing coating.

In another preferred embodiment, the coating layer containing resveratrol is a non- A permeable layer, that is, the consumer product cannot penetrate the resveratrol-containing coating layer to prevent the consumer product from interacting with the packaging material.

According to a specific embodiment of the invention, the wall of the container for a consumer product may comprise one or more walls. If the wall of the container is composed of only one layer, according to a specific embodiment of the present invention, this layer, that is, the wall of the container may contain resveratrol. In other words, the coating layer is the wall of the container. An example of such a specific embodiment of the present invention is a container made of a layer of plastic film which is sealed together to form a bag for use in consumer goods such as ready-to-use meals. The wall of the container, that is, the single-layer plastic film contains resveratrol and at the same time is the wall of the container.

According to a preferred embodiment of the present invention, the layer containing resveratrol (such as the coating layer, or the wall of the container) is a layer containing or consisting essentially or entirely of polymer. Specifically preferred are polymers having functional groups that can interact with resveratrol, preferably those that interact with the OH group of resveratrol. Non-limiting examples of such polymers are those polymers having functional groups capable of forming hydrogen bonds with resveratrol. Preferred examples of suitable polymers according to the present invention are polymers containing functional groups bearing heteroatoms of oxygen, nitrogen, sulfur, chlorine or fluorine.

According to a preferred embodiment, all, substantially all, or at least a portion of resveratrol contained in the layer (such as the coating layer, or the wall of the container) is not a component of the layer, specifically It is said that the polymer present in this layer is covalently bonded. Non-covalently bound resveratrol can migrate and replenish resveratrol on the inner surface of the container or within the packaged consumer product. On the other hand, at least a part of the components of resveratrol bound and fixed to the layer can in some cases help resveratrol to maintain a better position, specifically directly with the Where the packaged goods are in direct contact.

In yet another preferred embodiment, the inner wall is partially coated with resveratrol Alcohol coating. For example, the container may be coated with a coating layer containing resveratrol only in the area where the container is most likely to crack or fail. Alternatively, the inner wall may be coated with a coating layer containing resveratrol in a dot-like manner. These points may provide enough resveratrol to obtain the beneficial effects of the present invention. According to this specific embodiment, the areas not coated with the resveratrol-containing coating layer may be coated with different coating layers to prevent the consumer goods from interacting with the packaging material.

Yet another aspect of the present invention relates to a method of preparing a container for consumer goods as defined above, the method comprising the following steps: (a) providing a container having a container wall having a container facing the container The inner side of the inner space; (b) providing a coating layer on the inner side of the container wall, the coating layer containing resveratrol.

As described herein, any container suitable for providing the internal space of a container for packaging consumer goods can be used. The container has a container wall and the container wall has an inner side facing the inner space of the container. Any coating layer containing resveratrol as described herein or deemed appropriate by those of ordinary skill in the art may be used. According to one aspect, the container may have only one layer as the container wall, so the coating layer is also the container wall. In addition, an additional layer can also be provided in the container wall.

According to another aspect, the present invention further provides a method of preparing a container for consumer goods, comprising applying an uncured coating layer comprising resveratrol to the surface of a container wall material, and curing the untreated Step of curing the coating.

The uncured coating layer can be applied to the container wall material, such as through a standard spray gun known in the art.

In one embodiment of the invention, the uncured coating containing resveratrol The coating is applied to the surface of the container wall material before the container is formed. The advantage of this particular embodiment is that before the material is formed into a hollow container, the uncured coating layer containing resveratrol can be applied more uniformly and distributed on the surface of the container wall material. In another preferred embodiment, the resveratrol-containing coating layer may be attached or smeared on a surface of the container wall material in the form of a film or a foil, preferably before forming the container or It is then laminated or otherwise bonded to the container wall material. According to a specific embodiment of the present invention, the preparation of the resveratrol-containing coating layer, such as by using a foil, does not require a large amount of heating for an extended period of time. In addition, if the layer is cured, other curing methods besides thermal curing can be used, otherwise the heating time and temperature will be limited.

In another embodiment of the present invention, the uncured coating layer containing resveratrol is applied to the surface of the container wall material after the container is formed. The advantage of this particular embodiment is that standard containers can be obtained from a large number of manufacturers, and the coating layer of the present invention is then provided to obtain a container having the advantages according to the present invention. In addition, according to another specific embodiment, resveratrol can be added to at least one composition of the coating layer, while other production processes remain unchanged.

In one aspect of the invention, resveratrol, such as a solution containing the resveratrol, can be sprayed onto the inner surface of a container containing one or more container walls.

In another specific embodiment, after the coating layer has been applied to the inner wall (or surface) of the container, but before the consumer goods are filled into the container, resveratrol is added, for example, sprayed on On the surface of the coating layer. According to a further specific embodiment, after the coating layer is cured, but before the consumer goods are filled into the container, resveratrol is added to the coating layer, for example, sprayed thereon.

In a preferred embodiment of the present invention, the method includes a consumer The additional step of filling the product into the container. According to a specific embodiment, it is done after the coating layer containing resveratrol has been provided on the inner surface of the container.

In the context of the present invention, it should be understood that the inner surface of the container should refer to the inside of the container wall facing the inner surface of the container. Therefore, the container according to the invention has a container wall, for example made of metal such as aluminum, and this container wall has an outside facing the outside of the container and an inside facing the inside of the container. The inside (or surface) of the container, according to one embodiment of the present invention, may therefore be coated with one or more layers, at least one layer containing resveratrol. In one embodiment of the present invention, an inner surface of a container (wall) having only one layer (coating layer) is provided. This layer contains resveratrol according to the invention. In another embodiment of the present invention, more than one layer of the inner surface of the container (wall) is provided. In this case, one or more layers may contain resveratrol.

According to one broad aspect of the invention, the container therefore comprises a container wall consisting of one or more layers, at least one of which contains resveratrol.

According to a specific embodiment, there may be one or more layers not containing resveratrol between the layer containing resveratrol and the wall of the container. Furthermore, according to a specific embodiment, one or more layers not containing resveratrol may be present between the (coating) layer containing resveratrol and the outside of the container.

According to another specific embodiment, one or more layers that do not contain resveratrol may exist between the layer that contains resveratrol and the interior of the container, that is, the consumer goods can be filled in the The cavity of the container. According to a further specific embodiment, the resveratrol-containing layer is a layer directly facing the interior of the container, that is, once the container is filled with the consumer goods, directly contacting the container cavity or the consumer goods, respectively.

In one embodiment of the present invention, resveratrol can be included in any In the inner layer of the outer aluminum shell (container wall) of the can. In a preferred embodiment, resveratrol is only contained in one or more layers inside the outer aluminum shell of the can, which can be directly or through another layer of resveratrol and/or the consumer goods The permeable layer interacts with the consumer product. In another preferred embodiment, resveratrol is contained in a layer that can interact with the consumer product.

In another preferred embodiment, the uncured coating layer contains free metal radicals. Adding free metal free radicals to the uncured paint will reduce the baking and curing temperature and curing time, resulting in an additional reduction in the energy required to package a consumer product into a container according to the invention.

In a specific embodiment, the uncured coating layer is cured at a temperature of from 180 to 250°C, preferably at a temperature of from 180 to 220°C, for 80 to 230 seconds.

According to the present invention, a top coating layer containing resveratrol can be applied to the inside of the container so that the layer containing resveratrol can come into contact with the consumer goods.

In yet another preferred embodiment, there is at least one additional coating layer. For example, the bottom layer represents a resveratrol-infused, BPA-free, corrosion-resistant coating layer that contains a, specifically water-based, monomer enhancer that drives resveratrol to the top layer The layer is coated to contact the consumer goods.

According to a specific embodiment of the present invention, it can be ensured that in the final step of preparing the container (ie before filling), resveratrol is located on the inner surface of the coating layer of the container, and the container is in contact with the consumer goods.

The invention also provides an application of the container described herein for storing a consumer product. In a preferred embodiment, the container is used to store non-beverage consumer goods.

In addition, the present invention provides the use of resveratrol as an additive to a coating layer, which is specifically a coating layer on the inner surface of a container, which is specifically used for consumer goods .

As described herein, all specific embodiments of the present invention are considered to be combinable in any form, unless those of ordinary skill in the art consider such a combination to be of no technical significance.

Examples

Example 1

Preparation of paint (coating layer) containing resveratrol

Bisphenol A-free layer containing polyester acrylate (prepared according to Example 2 of PCT Patent Publication No. WO 2008036629 A2)

A 2 liter flask is equipped with a stirrer, packed column, condenser, thermocouple, heating bag, and nitrogen blanket. Add the following to the flask: 498.6 grams of propylene glycol, 80.1 grams of trimethylolpropane, 880.1 grams of terephthalic acid, 40.0 grams of isophthalic acid, and 2.0 grams of FASCAT 9100 butylhydroxyoxystannane Catalyst (purchased from Total Petrochemicals USA, Houston, USA).

Under the nitrogen blanket, the contents of the flask were slowly heated to 225°C to 235°C, and the water from the polycondensation reaction was distilled off. Once the reaction mixture became clear, and after the temperature at the top of the column dropped, the reaction mixture was cooled to 160°C, and 85.5 g of isophthalic acid and 16.0 g of anhydrous maleic acid were added to the flask . Under a nitrogen blanket, the reaction mixture was slowly reheated to 220°C to 230°C.

Once the reaction mixture became clear, and after the temperature at the top of the packed column dropped, the reaction mixture in the flask was cooled to 200°C, and the packed column was used for azeotropic distillation. The Dean & Stark column was replaced and 30.0 grams of xylene was added to the flask. The contents of the flask were heated to the reflux temperature again under a nitrogen blanket, and more reaction water was distilled off until the acid value of the reaction mixture was below 5. The contents of the flask were cooled to 145°C to 150°C, and then 744.6 g of butyl glycol, 104.7 g of n-butanol, and 219.6 g of xylene were added to form a dissolved polyester solution.

A 5 liter flask was equipped with a stirrer, reflux condenser, thermocouple, heating bag, and nitrogen blanket. An example of the dissolved polyester solution (1782.0 g) and butyl glycol (123.0 g) as described above were placed in the 5 liter flask and preheated to 120°C under a nitrogen blanket. In another flask, premix 321.0 g of ethyl acrylate, 68.3 g of glacial acrylic acid, 96.1 g of styrene, and 11.9 g of VAZO 67 free radical initiator (2,2′-azobis(2-methylbutyl Nitrile), purchased from Du Pont de Nemours, Wilmington, Dalawa, USA). The mixture of the monomer and the initiator was added to the polyester solution at a temperature of 120°C to 122°C under a nitrogen blanket over a period of 135 minutes. The temperature in the 5 liter flask was then maintained at 122°C for 1 hour.

After this, 2.6 g of TRIGONOX C radical initiator (tert-butyl peroxybenzoate, purchased from Akzo Nobel) was added to the 5 liter flask, and the reactor temperature was maintained at 122°C for 2 hours. The reaction temperature was then cooled to 105°C, and a premix containing 150.3 g of dimethylethanolamine and 150.3 g of deionized water was added to the 5 liter flask over a period of 10 minutes, followed by standing for 10 minutes. At the end of the addition, the temperature of the reaction mixture dropped to 90°C. Finally, 2554 grams of water was added to the 5 liter flask over a period of 30 minutes, and the polyester acrylate solution was converted into an aqueous dispersion of polyester acrylate.

Mix a 60% VARCUM 2227 phenolic resin solution (211 g) (Reichhold Company, Durham City, USA) incorporated into the converted polyester acrylate resin at a temperature of about 60°C after the final water addition step of the polyester acrylate resin is completed. Add this VARCUM 2227 resin after standing for 20 minutes.

The aqueous dispersion of polyester acrylate phenolic contains 29.8% by weight of solids (non-volatile matter). Based on the total weight of the polyester acrylate phenolic aqueous dispersion, it is obtained by heating 1 gram of this at 150°C. A sample of an aqueous dispersion of polyester acrylate phenolic resin was measured at 60 minutes. The aqueous dispersion of polyester acrylate phenolic resin has a pH value of 8.53 standard pH units at a temperature of 20°C.

70.43 parts of polyester acrylate phenolic resin prepared by the above method was added with stirring, 14.40 parts of deionized water and 0.022 parts of CYCAT 600 aromatic sulfonic acid, 10.75 parts of tert-butanol and 2.57 parts of CYMEL 303 A premix consisting of hexamethoxymethyl melamine. The resulting composition was added with stirring 0.17 parts of carnauba wax emulsion and 0.65 parts of BACOTE 20 AZC (MEL Chemical Company, Manchester, United Kingdom; diluted to 10% in water). The resulting product is suitable for spraying inside beverage cans and is cross-linked at high temperatures.

However, in the following examples, Valspar 40Q60AA (available from The Valspar Company, Minneapolis, United States) was used as the bisphenol A-free polyester acrylate-containing layer ( liner A ). To illustrate the utility of the present invention, the preparation of the bisphenol A-free polyester acrylate-containing layer does not add resveratrol, or directly add 0.001 weight percent, 0.01 weight percent, and 0.1 weight percent resveratrol to This is suitable for spraying solutions.

Contains epoxy resin-acrylate layer (prepared according to Example 18 of PCT Patent Publication No. WO 2008036629 A2)

A 5 liter flask was equipped with a stirrer, reflux condenser, thermocouple, heating bag, and nitrogen blanket. In the reactor, low-molecular-weight liquid epoxy resin and bisphenol A and butyltriphenylphosphonium bromide catalyst and xylene were added. Nitrogen charging and heating were performed at the beginning, and then an exothermic reaction increased the temperature in the reactor.

A target weight of about 2900-3100 per epoxy value is achieved in a typical 6 hour reaction time. Then butyl glycol, n-butanol and amyl alcohol solvents were slowly added over a period of 90 minutes. The acrylic monomer styrene and methacrylic acid plus benzoyl peroxide initiator LUCIDOL 78 (available from Akzo Nobel, Amsterdam, Netherlands) were then added to the monomer addition tank. After stirring, check the acid value of this monomer/catalyst premix. The monomer/catalyst is then slowly added to the hot epoxy solution, and acrylic acid polymerization is performed. The epoxy resin acrylic solution was then cooled and moved from the reactor to a thin tank containing a solution of water and diaminoethanolamine. Through conversion, the epoxy resin acrylic solution forms a dispersion in inverted water.

Under stirring, 76.02 parts of the epoxy resin acrylic resin dispersion prepared by the above method was added with 18.82 parts of deionized water, 3.68 parts of tert-butanol, and 0.25 parts of dimethylaminoethanol and 1.23 parts of A premix consisting of deionized water. The resulting product is suitable for spraying inside beverage cans and is cross-linked at high temperatures.

However, in the following examples, Aquaure 900 (available from Akzo Nobel Company, Amsterdam, Netherlands) is used as the epoxy resin-acrylate-containing layer ( inner liner B ). To illustrate the utility of the present invention, resveratrol was not added when preparing the epoxy resin-acrylate-containing layer, or 0.001 weight percent, 0.01 weight percent, and 0.1 weight percent resveratrol were directly added to this suitable for spraying In solution.

Example 2

A coating layer containing resveratrol is applied to the packaging material/container wall (before/after the container is formed)

By using a double-headed spray gun to coat the inner wall and dome of the can, the aluminum can as described in Example 1 was applied as a coating layer. The amount of paint used for coating depends on the size of the coated can. In this example, cans having a volume of 150 to 440 ml were coated with 100 to 240 mg of Liner A or Liner B containing 0.01% by weight of resveratrol.

The uncured coating layer is cured at a baking temperature between 180 and 250°C for 80 to 230 seconds. The resulting distribution thickness of the layer is between 3.5 and 8.4 grams per square meter (gsm). Table 1 shows the thickness of the film layer on the top, middle, bottom and dome portions of a can coated with a liner A containing 0.01% by weight of resveratrol.

Example 3

Evaluation of the physical parameters of the coating tank

The adhesion of the coating layer of the can obtained in Example 2 (AS 1580 method 408.4), impact resistance at 18 Joules (AS 1580 method 406.1), immersion in hydrochloric acid for 5 minutes and wear Porosity (SSL test method). Further examination of these cans with a microscope for blistering (AS 1580 method 481.1.9), delamination (AS 1580 method 481.1.10) and corrosion (AS 1580 method 481.3). The performance of the can was excellent in all tests and maintained the integrity of the coating. The results of these tests are shown in Table 2.

Example 4

Sensory evaluation of packaged red wine

The red wine was packaged in 250 ml ultra-thin cans obtained from Example 2, and then stored for 24 months. Sensory evaluation was performed at the beginning of the trial, after 3 months, after 6 months, after 12 months, and after 24 months. The results of this example are shown in Table 3.

Claims (22)

A container for consumer goods, wherein the inner surface of the container is at least partially coated with a coating layer comprising resveratrol. As in the container of claim 1, wherein the consumer goods are non-beverage consumer goods. The container of claim 1, wherein the consumer goods are food or food, personal care or medical products. The container of claim 3, wherein the personal care or medical product is in the form of tablets, capsules, granules, powders, liquids, soaps, lotions or creams, emulsions, ointments, dispersions, or solutions. The container according to any one of claims 1 to 4, wherein the inner surface of the container is integrally coated with a coating layer containing resveratrol. The container according to any one of claims 1 to 4, wherein the coating layer contains resveratrol at a concentration of at least 0.0001 weight percent, or the coating layer contains resveratrol at a concentration of at least 0.001 weight percent, or The coating layer contains resveratrol at a concentration of at least 0.01 weight percent, or the coating layer contains resveratrol at a concentration of at least 0.1 weight percent, or the coating layer contains resveratrol at a concentration of at least 1 weight percent Retinol. The container according to any one of claims 1 to 4, wherein the coating layer contains resveratrol at a concentration of at most 30% by weight, or the coating layer contains resveratrol at a concentration of at most 10% by weight, or The coating layer contains resveratrol at a concentration of at most 1 weight percent, or The coating layer contains resveratrol at a concentration of at most 0.1 weight percent, or the coating layer contains resveratrol at a concentration of at most 0.01 weight percent. The container according to any one of claims 1 to 4, wherein the container is made of glass, metal, polymer material, paper, cardboard, or a combination thereof, or the container is made of aluminum and/or polymer material production. The container according to any one of claims 1 to 4, wherein the thickness of the coating layer on the inner surface of the container is in the range of about 3.5 to about 8.4 grams per square meter, or in the container The thickness of the coating layer on the inner surface is in the range of about 4.0 to about 8.0 grams per square meter. The container according to any one of claims 1 to 4, wherein the coating layer is a thermosetting coating layer. The container according to any one of claims 1 to 4, wherein at least one additional coating layer is present, optionally between the resveratrol-containing coating layer and the container wall made of metal. A method for preparing a container for consumer goods, the method includes the following steps: (a) providing a container having a container wall having an inner side facing the inner space of the container; (b) providing a A coating layer on the inner side of the container wall, the coating layer containing resveratrol alcohol. The method of claim 12, wherein step b) comprises applying an uncured coating layer containing resveratrol to the surface of the container wall, and curing the uncured coating layer. The method of claim 12 or 13, wherein the uncured coating layer containing resveratrol is applied to the surface of the container wall material before or after the container is formed. The method of claim 12 or 13, wherein the method includes the step of further filling the consumer goods into the container. The method of claim 12 or 13, wherein the consumer goods are food or food, personal care or medical products. Such as the container of claim 1, it is obtained by the method of any one of claims 12 to 16. The container of claim 1 further contains consumer goods. An application for a container as claimed in any one of items 1 to 11, 17 and 18, which is used to store a consumer product. As in the application of claim 19, wherein the consumer goods are food or food, personal care or medical products. An application of resveratrol as an additive for coating layers of containers containing consumer goods. As in the application of claim 21, wherein the consumer goods are food or food, personal care or medical products.